#3759AF#3759AF

#3759AF is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.6% C 0.143 H 265.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3759AF
RGB	rgb(55, 89, 175)
HSL	hsl(223, 52%, 45%)
HSV	hsv(223, 69%, 69%)
CMYK	cmyk(68.6%, 49.1%, 0%, 31.4%)
CIE-LAB	lab(39.67, 16.90, -49.62)
CIE-LCH	lch(39.67, 52.42, 288.81°)
OKLab	oklab(48.58% -0.0118 -0.1423)
OKLCH	oklch(48.58% 0.143 265.2)
XYZ	xyz(12.8831, 11.0509, 42.0032)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759AF #AF8D37

analogous

#3795AF #3759AF #5137AF

triadic

#3759AF #AF3759 #59AF37

tetradic

#3759AF #AF3795 #AF8D37 #37AF51

square

#3759AF #AF3795 #AF8D37 #37AF51

split-complementary

#3759AF #AF5137 #95AF37

monochromatic

#1A2A52 #284180 #3759AF #5979CB #879ED9

Accessibility & contrast

On white

6.54

#3759AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3759AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759AF

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759AF	#FFFFFF	#000000	##FFFFFF
##3759AF	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A63B2

Deuteranopia (green-blind)

#0858AD

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3759af;
/* rgb */ color: rgb(55, 89, 175);
/* oklch */ color: oklch(48.6% 0.143 265.2);

Tailwind

colors: {
  custom: {
    50: '#7c87c7',
    500: '#3759af',
    950: '#000000',
  },
}

SCSS

$custom: #3759af;
$custom-light: #7c87c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3759af",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 175
  },
  "hsl": {
    "h": 223,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48582,
    "c": 0.14275,
    "h": 265.2
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary

#3759AF

secondary

#C3B07F

accent

#B34CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3759AF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →